7 Hertz Experiment Demo

[@Roozbeh72]

Excellent demonstration and explained crystal clear. Well done!

[@Luachair]

Wonderful demonstration, congratulations. Polarization, so well explained was new for me as was the X-radiation.

[@josephastanko6128]

This is an excellent video. The best i have seen so far explaining and simulating Hertz's confirmation of the generation of electromagnetic waves. The only possible omission that struck me is that the presenter failed to mention the important "oscillatory" nature of the spark discharge. Just as in a cloud to ground lightning strike in nature, it is known that the downward discharge is rapidly followed and upward discharge snd this repeats back and forth at a high frequency, generating electromagnetic waves back and forth in both directions. I believe this is what explains Hertz's finding of the standing wave pattern between the electrodes that the presenter describes at the end of the video. The presenter seems to attribute the EM wave generation to the rapid deceleration of the electrons upon collision with the pointed metal needle. Are both factors involved?

[@mohammadramadantech470]

Joseph A Stanko thanks for this

[@salamalmudarris5032]

In the primary coil circuit there is a switch similar to the switch in the electric bell, which connects the circuit on and off in fractions of a second repeatedly, so the intermittent spark is generated.

[@dominicestebanrice7460]

FANTASTIC demo and explanation. Thank you!

[@akshaybhawar842]

I am amazed world need techer who teaches and shows experiment practically this video and experience will be a core memory for me

[@rafaelespinosacastaneda9221]

This is so beatiful!

[@dannejendinger1847]

That was information I’ve could have been useful before I played with mine the whole day. Oh well… Gonna glow in the dark tonight. 😂

[@PedroSantos-mk3pm]

1. Ok ...Good ...do not Know your name, but lesson super well explained ...so we can do this experimentation ... worried a little cause the x-ray...how real dangerous is xr ...can we get further information...we can easily detect it (X-ray)? 2. If I get an antique photo film in my pocket...what it happens...this guy X radiation ... film damages in that case? 3. That experimentation inside a magnet field such as Neodymium magnet, we got some magnetron ? 4. Lesson on Facebook, can we follow you?

[@tarunpurohit6522]

Great great great explaination

[@mhhstudio1105]

awesome video,.this channel deserve more subs

[@oldolfmann8927]

Too many mistakes in this video, that's why no subs

[@swathisrimuthukumar2879]

What are the materials used in this experiment

[@mohdshahbazkhan3984]

Nice demonstration.

[@h7opolo]

please use a receiver loop. why can't we ever replicate these so-called historical experiments? a lot of it appears to be lies.

[@rajeev_kumar]

I still don't believe in electromagnetic waves, good video though.

[@timetraveler7]

You... don't believe in electromagnetic waves? I'm baffled at what this even means, you use technology based on EM waves what explanation do you have for all the evidence of EM waves and their uses?

[@joelavoie221gmail]

Inter coil does can it adjust on the back and have ro like métal plate my arm can does the switch like... Finger Spark Lightning Arm...my chest back Two kind of coil armor

[@panchovilla5400]

Where did you get the x rays from???????. Yeah, like a get a shot of x rays from a spark of static when after walking on a rug I touch the knob of the door. Good thinking!!!!!!!!!!!!!!!!

[@edwardsalazar8058]

How come it is generating voltage on the secondary for a long time during long pushbutton press.it should generate only at transient moments.

[@psycronizer]

obviously she has a small circuit there on the end of the primary coil that is designed to switch the power off and on again many times per second, it's commonly called an oscillator, and can be made in many many different ways, using simple components like one single transistor and a capacitor or just an inverter I.C.....or another two transistor circuit called an astable multivibrator, like I said, many, many different ways to achieve the same effect. Because you are right, just completing the circuit will only produce one spark then do nothing but maintain the electromagnetic field thus wasting the battery, but as soon as you remove the power, the field collapses, but, as it does so, in the secondary, that collapse actually goes somewhere, and it induces another current in the primary, this could go on back and forth but resistance and also being connected to the equipment in the primary stops the whole show.This type of self induction from primary to secondary and back again is the basis for the TESLA coil, the two coils charge each other as they collapse, but they are tuned to do so by being of an exact length and wire thickness to an exact matching inductance, measured in Henry's in combination with capacitors that are also of an exact tune, measured in Farads to deliver just the right amount of energy at just the right time, kind of like how someone pushes another person on a swing, you supply just a little push at the right time and the oscillations can build up, because if power, or the push, is applied at the wrong time, the oscillation won't build up, just like trying to push someone on that swing at the wrong time, it won't help. Hope I didn't dumb that down too much....

[@tobingaedke7205]

If the spark is oscillating at a specific frequency as defined by your oscillator or signal generator, then why is the radio interference not picked up at only that specific frequency?

[@sidharthsingh7515]

reflection, deflection and attenuation of the air around the apparatus will distort original signal.

[@oldolfmann8927]

because that devices is not making any specific frequency, no clean sine wave on any frequency , just high voltage sparks that emit a single spike, same click you hear on your am radio when lightning strikes, but it is making sparks several time a second. Don't believe everything you hear in this video.

[@oldolfmann8927]

So many mistakes... geez people, stop saying how great this video is, it's not, and if you think you learned something, you learned some wrong info. in the beginning she doesn't explain that there is an oscillator on the end that is creating the pulsing 6 volts into the primary coil... that pulsing voltage is what is creating the expanding and collapsing magnetic field in the primary coil. That expanding and collapsing magnetic field is what interacts with the secondary coil then for safety she says beware of X rays, but mentions nothing of being shocked by the high voltage. then she says the more you slide the secondary over the primary the higher the voltage will be... not true, the spacing of the spark gap will determine the voltage. as you widen the gap it will require a higher voltage to jump the gap. even if you slide the secondary all the way over the primary the voltage across the gap will not increase unless you widen the gap. then she says "as a rule of thumb" about 10,000 volts to jump a centimeter of air.... wrong 30,000 volts per centimeter. then even MORE mistakes... She says the higher the voltage the higher the frequency.... no no no... Stronger signal, but not higher freq. then she says his detector gap "has a loop just to complete the circuit" SO WRONG ! the LOOP is NOT just to complete the circuit, the loop is the antenna that is picking up the signal and the loop is what the voltage and current build up on. The small gap in the loop is just so a small spark can be created (for him to see/hear) hear as the voltage and current build up in the loop to the point that is jumps the gap. then she says he held his receiver spark gap close together... if he "held" the spark gap there wouldn't be a spark, he would absorb the electricity and be shocked instead. She should have said he "positioned" the spark gap closer together. then they don't have a receiver loop??? what? oops, I'm just going to guess because she made a tiny one "just to complete the circuit" and it wouldn't work. No you don't need to tune to the lowest freq on the AM Radio. Just about any AM receiver at any frequency will pick up those simple spikes. and BTW "AM is Not a BAND" as she said regarding polarization... she is wrong again, the electrodes (spark gap) does not need to be horizontal, it is the antenna loop that would need to be horizontal. The loop could be of a length that allowed to ends to meet, then slightly twist the ends so the gap is vertical and it will still receive and still make the spark. And even if a signal is transmited vertical or horizontal it can still be picked up by an antenna that is not polarized the same, just not as strong, and also as radio signals travel their polarization can change. Sorry, just too many mistakes in this video, I had to point em out, and I didn't even mention them all.

[@easyerthanyouthink]

It is better than many other videos. But maybe she is just over simplifying it. Idk But all you points are valid 👍 But i have a question ? I understand spark gap as a way of making sure what the minimum voltage is going over the gap. But the voltage must be present in the first place. So the gap is a control measure. The gap only determines the minimum voltage that can pass. Most references on the net say 10000 volts for 1cm. You said much, so forgive me for any info you already said or said in a different way.

[@maheshkurtkoti5241]

Does the radiation occur even when the spark is not appearing and supply is on.?

[@harisharavindh5480]

Same question here

[@howtoelectric1960]

Yes it occur.

[@atheistaetherist2747]

There is no natural wave. There is a man-made pulse, or pulses. The pulses have a frequency. But there is no wave. And if the gap was zero mm, there would be a pulse, or pulses. It duznt need a spark. It duznt need a gap. Hertz was mistaken. There is no wave.

[@bobbylong2202]

Love it

[@mansi9145]

Is that an AC 6V battery?

[@mimoslavija]

Battery can't be AC only DC to run ignition coil you need on off on off DC current

[@jliu6647]

use a better camera pls.